US4848415A - Machine for forming a tucked selvedge, lightened and of low thickness, in fabrics produced on shuttle-less looms - Google Patents

Machine for forming a tucked selvedge, lightened and of low thickness, in fabrics produced on shuttle-less looms Download PDF

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Publication number
US4848415A
US4848415A US07/131,625 US13162587A US4848415A US 4848415 A US4848415 A US 4848415A US 13162587 A US13162587 A US 13162587A US 4848415 A US4848415 A US 4848415A
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United States
Prior art keywords
tucked
needle
cams
hook
pincer
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Expired - Fee Related
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US07/131,625
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English (en)
Inventor
Giovanni Manea
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COSTRUZIONI MECCANICHE MANEA Srl VIA DANTE 36015 SCHIO (VICENZA ITALY)
CONSTRUZIONI MECCANICHE MANEA Srl
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CONSTRUZIONI MECCANICHE MANEA Srl
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Assigned to COSTRUZIONI MECCANICHE MANEA S.R.L., VIA DANTE 36015 SCHIO (VICENZA, ITALY) reassignment COSTRUZIONI MECCANICHE MANEA S.R.L., VIA DANTE 36015 SCHIO (VICENZA, ITALY) ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MANEA, GIOVANNI
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/40—Forming selvedges
    • D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing

Definitions

  • the present invention relates to an improved machine for forming a tucked selvedge, lightened and of low thickness, in fabrics produced on shuttle-less looms.
  • the tucked selvedge forming machine according to the invention is of the type described and illustrated in a detailed manner in U.S. Pat. No. 4,070,049 and in Italian Utility Model Application No. 20870 B/82 filed on Feb. 17, 1982.
  • hook-needle control linkage bears a cam-sensing idle roller which, by means of an electromagnet connected to the said linkage, is sequentially restrained to and freed from the operative external profile of an actuating cam which is keyed to the main shaft of the tucked selvedge forming machine.
  • the object of the present invention is to obviate the drawbacks of the known art by embodying a tucked selvedge forming machine that will form, in a fabric produced on a shuttle-less loom operating at very high speeds of the order of about 600 picks/minute, a tucked selvedge of the type in which at least two weft threads are tucked simultaneously in the same warp shed.
  • the invention embodies a tucked selvedge forming machine of the kind forming subject matter of U.S. Pat. No. 4,076,049 and Italian Utility Model Application No. 20870 B/82 used to form a tucked selvedge in fabrics produced on shuttle-less looms, of the type in which at least two warp threads are tucked simultaneously in the same warp shed, wherein the main shaft of the forming machine rotates at a number of revolutions that is equal to the number of revolutions of the shaft of the loom on which the forming machine is mounted, divided by the number of warp threads tucked simultaneously in the same warp shed, and wherein the movement of the hook-needle, the weft thread seizing pincer and the weft-thread cutting unit, or scissor, is at each instant positively controlled through the intermediary of a set of cams mounted on the forming machine shaft and connected to the said hook-needle through respective linkage systems, the said cams being operative for
  • FIG. 1 is a plan view illustrating the forming machine in question without its cover and with the hook-needle in the non-operative raised "wait” position;
  • FIG. 2 is a sectional view taken through the line II--II in FIG. 1;
  • FIG. 3 is a sectional view taken through the line III--III in FIG. 1;
  • FIG. 4 is an elevational view taken in the direction shown by the arrow F in FIG. 1;
  • FIG. 5 is an operating schematic showing the flat development of profiles of the cam that controls the combined rotation-translation movement of the hook-needle, in which there are also shown the different significant position of said needle, the first and the last in plan, and in section the three intermediate positions;
  • FIG. 6 is a view as in FIG. 5 but illustrating the profiles of the cams controlling the movement of the weft thread seizing pincer and the weft thread scissors.
  • the tucked selvedge forming machine in question is indicated overall by 10 and consists structurally of a box-shaped body 11 containing all the control linkages for a hook-needle 12, a weft-thread seizing pincer 13 and weft-thread scissors 14.
  • the numeral 15 indicates the main shaft of the tucked selvedge forming machine which receives motion from the main shaft of the loom - shown diagrammatically at 16, through a kinematic reduction chain shown diagrammatically at 17.
  • the rotation speed of the shaft 15 of the tucked selvedge forming machine is equal to the speed of rotation of the shaft 16 of the weaving loom, with which the forming machine is operationally associated, divided by the number of weft threads that are tucked simultaneously in warp shed by the hook-needle 12.
  • the hook-needle 12 can be controlled as described in the aforesaid Italian Utility Model application, i.e. by the agency of a shaft 20, having a combined rotation-translation movement, on the free end of which the needle 12 is mounted in a position-wise adjustable manner.
  • the shaft 20 is supported within a seat 21 fixed to the front of the box-shaped body 11 and, at the end of it opposite the needle 12, carries a pinion 22 which engages a rack 23 that controls the rotation of the shaft 20.
  • the rack 23 is fixed to a slide 24 which is guided so as to be translated within a seat 25 of the body 11.
  • a slide 24 On the slide 24 there is also mounted radially an idle roller 26 engaged by a shaped cam track or guide 27 of the cam 18.
  • the kinematic chain consisting of the guide 27, the roller 26, the slide 24, the rack 23, the pinion 22 and the shaft 20 controls the rotation movement of the hook-needle 12.
  • the oscillation of the lever 28 is controlled by a shaped guide 30 of the cam 18 which engages an idle roller 31 mounted at one end of the lever 28, the opposite end of which is restrained at 32 to the shaft 20.
  • the main shaft 15 of the tucked selvedge forming machine rotates an appreciably slower speed than the shaft 16 of the weaving loom, and since the tucked selvedge forming machine is intended to form a lightened and low-thickness tucked selvedge, in which the hook-needle 12 simultaneously tucks at least two weft-threads in the same warp shed, then at each rotation of the shaft 15 the needle 12 will operate only along a limited angle while for the remaining angle it will be in a non-operating condition, since it must be made to wait for the tucking into the warp shed of the pre-set number of weft threads, which have to be tucked in a single operating step.
  • the weft threads to be simltaneously tucked in one-and the same warp shed were two in number, and the weaving loom operated at 600 picks a minute, then the tucked selvedge forming machine will operate at 300 picks per minute and the hook-needle will remain inoperative for an angle of rotation of about 180° of the shaft 15.
  • the needle will be operative for an angle of rotation of the shaft 15 equal to 360° divided by the number of weft threads tucked simultaneously in one-and-the same warp shed.
  • FIG. 5 of the drawings shows how in the rectilinear sections 33 and 34 of the guides 27 nd 30 respectively, the cam 18 transmits no motion to the needle 12 through the aforesaid the kinematic chains; on the other hand, in the shaped sections, the needle 12 is actuated to move with a rotational-translational movement to effect, in a manner per se known, the tucking of several weft threads in one and the same warp shed.
  • the guide 35 is operatively connected to the pincer 13 through the agency of an idle roller 41 which is carried on one end of a pivotal link 44; the (FIGS. 1 and 2), the opposite end of which is connected to pincer 13 (FIGS. 1, 2, 4) to effect the rising and falling movement of the pincer in a manner generally similar to the pincers disclosed in the above-noted U.S. Pat. No. 4,076,049.
  • the guide 36 is also operatively connected to the pincer 13 through the agency of an idle roller 42 carried by one end of and a pivotal link 45; and the opposite end of this link is connected to the kinematism which controls the exit movement of the pincer.
  • the guide 37 is operatively connected to the scissors 14 through the agency of an idle roller 43 carried by one end of a pivotal link 46. As shown in FIGS. 1 to 4 the opposite end of link is connected in a conventional manner to control the opening and closing movement of the moveable blade of scissors 14 in a manner generally similar to that shown in FIG. 8 in U.S. Pat. No. 4,076,049.
  • the guides 35, 36 and 37 also feature non-operative sections 38, 39 and 40 respectively, similarly to those of the guides 27 and 30.
  • the guides 35, 36 and 37 are also operative only for an angle of 180° rotation of the main shaft 15.
  • FIG. 5 and 6 of the attached drawings illustrate the reciprocal positions of the cam-sensing rollers 41, 42 and 43 in the respective guides 35, 36 and 37 where, to indicate the corresponding positions, each reference number is followed by a letter of the alphabet.
  • the tucked selvedge forming machine of the invention can naturally be applied for the realization of lightened and low-thickness selvedges both in normal and sponge fabrics, if it is requisite to tuck simultaneously two or more weft threads in one-and-the same- warp shed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)
US07/131,625 1987-05-25 1987-12-10 Machine for forming a tucked selvedge, lightened and of low thickness, in fabrics produced on shuttle-less looms Expired - Fee Related US4848415A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20655/87A IT1218130B (it) 1987-05-25 1987-05-25 Cimossatrice per la formazione di una cimossa rientrata allehherita e con spessore ridotto in tessuti prodotti su telai senza navetta
IT20655A/87 1987-05-25

Publications (1)

Publication Number Publication Date
US4848415A true US4848415A (en) 1989-07-18

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Family Applications (1)

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US07/131,625 Expired - Fee Related US4848415A (en) 1987-05-25 1987-12-10 Machine for forming a tucked selvedge, lightened and of low thickness, in fabrics produced on shuttle-less looms

Country Status (8)

Country Link
US (1) US4848415A (zh)
EP (1) EP0293019A3 (zh)
JP (1) JPS63303150A (zh)
KR (1) KR880014154A (zh)
CN (1) CN1017733B (zh)
AU (1) AU8229587A (zh)
IT (1) IT1218130B (zh)
PL (1) PL272679A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972881A (en) * 1988-07-20 1990-11-27 Nissan Motor Co., Ltd. Tack-in selvage forming apparatus
US5193591A (en) * 1990-04-20 1993-03-16 Cem Italia S.R.L Mechanism for forming a recessed selvedge on a shuttleless loom
CN103726198A (zh) * 2013-12-27 2014-04-16 浙江理工大学 一种五连杆双凸轮式折入边钩针驱动机构
CN105780272A (zh) * 2016-05-06 2016-07-20 山东日发纺织机械有限公司 一种应用于中分幅织机的气动剪刀及折入边装置
CN105780271A (zh) * 2016-03-31 2016-07-20 诸暨市金叶纺织机械有限公司 一种织布机的活动式光边喷气折入边机构

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59005938D1 (de) * 1990-01-23 1994-07-07 Rueti Ag Maschf Leistenlegevorrichtung für Webmaschine.
JP2013067465A (ja) * 2011-09-21 2013-04-18 Murata Machinery Ltd 糸処理装置及び糸巻取装置
CN103147215B (zh) * 2011-12-06 2015-12-16 上海中剑纺织机械有限公司 一种钢丝网折边机
CN103306021B (zh) * 2013-06-14 2015-07-08 浙江鹤群机械股份有限公司 一种织机折入边装置的凸轮
CN103382614B (zh) * 2013-06-27 2016-02-17 浙江理工大学 一种伺服电机驱动的折入边钩针转动机构
CN104213317B (zh) * 2014-09-18 2015-10-21 青岛天一集团红旗纺织机械有限公司 喷气织机不截筘气动光边装置
CN105483917B (zh) * 2015-12-28 2017-04-05 浙江鹤群机械股份有限公司 超宽边折入边装置
CN106435966B (zh) * 2016-08-31 2018-02-02 绍兴通用提花机械有限公司 一种织机的套边装置
CN108442021A (zh) * 2018-04-24 2018-08-24 绍兴通用提花机械有限公司 一种双纬绕边织机的钩针传动装置
CN108468138B (zh) * 2018-04-24 2024-04-09 绍兴通用提花机械有限公司 一种双纬绕边织机
CN108893842B (zh) * 2018-09-17 2023-06-16 太平洋纺织机械（常熟）有限公司 剑杆织机的气动折入边装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076049A (en) * 1975-04-16 1978-02-28 F.11I Manea S.N.C. Costruzioni Meccaniche Accessori Tessili Machine for the formation of selvedges in fabrics
US4078586A (en) * 1976-08-26 1978-03-14 Adolph Saurer Limited Method and apparatus for producing a selvage
US4600039A (en) * 1982-12-23 1986-07-15 Nuovo Pignone S.P.A. Process and device for the formation of a tucked selvedge, especially suitable for terry looms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH595491A5 (zh) * 1975-09-02 1978-02-15 Saurer Ag Adolph
IT1067636B (it) * 1976-07-30 1985-03-16 Sbabo Silvio Dispositivo per tagliare trattene re e ripiegare il capo di trama per ottenere cimosse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076049A (en) * 1975-04-16 1978-02-28 F.11I Manea S.N.C. Costruzioni Meccaniche Accessori Tessili Machine for the formation of selvedges in fabrics
US4078586A (en) * 1976-08-26 1978-03-14 Adolph Saurer Limited Method and apparatus for producing a selvage
US4600039A (en) * 1982-12-23 1986-07-15 Nuovo Pignone S.P.A. Process and device for the formation of a tucked selvedge, especially suitable for terry looms

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972881A (en) * 1988-07-20 1990-11-27 Nissan Motor Co., Ltd. Tack-in selvage forming apparatus
US5193591A (en) * 1990-04-20 1993-03-16 Cem Italia S.R.L Mechanism for forming a recessed selvedge on a shuttleless loom
CN103726198A (zh) * 2013-12-27 2014-04-16 浙江理工大学 一种五连杆双凸轮式折入边钩针驱动机构
CN103726198B (zh) * 2013-12-27 2014-12-24 浙江理工大学 一种五连杆双凸轮式折入边钩针驱动机构
CN105780271A (zh) * 2016-03-31 2016-07-20 诸暨市金叶纺织机械有限公司 一种织布机的活动式光边喷气折入边机构
CN105780272A (zh) * 2016-05-06 2016-07-20 山东日发纺织机械有限公司 一种应用于中分幅织机的气动剪刀及折入边装置

Also Published As

Publication number Publication date
EP0293019A2 (en) 1988-11-30
CN1017733B (zh) 1992-08-05
AU8229587A (en) 1988-12-01
PL272679A1 (en) 1989-02-20
CN88101495A (zh) 1988-12-07
KR880014154A (ko) 1988-12-23
EP0293019A3 (en) 1990-07-25
JPS63303150A (ja) 1988-12-09
IT8720655A0 (it) 1987-05-25
IT1218130B (it) 1990-04-12

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AS Assignment

Owner name: COSTRUZIONI MECCANICHE MANEA S.R.L., VIA DANTE 360

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MANEA, GIOVANNI;REEL/FRAME:004816/0810

Effective date: 19871110

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19930718

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362